The oldest private club building in Ontario, 107 Wellington Street West was designed for the Toronto Club in 1888-89 by Frank Darling and Samuel Curry. Its design mixes different architectural styles and marks an important transition in Darling's career. The sandstone base, terracotta details, windows and capitals on the ground floor reflect the Richardson Romanesque Style. The second floor's Palladian-like windows, pilasters and capitals, frieze, cornice mouldings and the nearly square attic windows are in the Renaissance Revival Style. The interior contains a billiards room, reading rooms, and dining rooms finished with wood paneling and carvings, stone and marble fireplaces, and plaster ceilings.